Physician Profile
Based in Ballwin, MO, Nicholas A. Greiner, D.O. is listed in the NPI registry under family medicine — sports medicine. Nicholas graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2008. According to Medicare claims data, Nicholas cared for 509 Medicare patients across 1,641 services. The services billed most often include injection, triamcinolone acetonide, not otherwise specified, 10 mg, injection, methylprednisolone acetate, 1 mg, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
15945 CLAYTON RD STE 210
Ballwin, MO 63011
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cardiometabolic
Digestive
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Most searched procedures
Preventive interventions
Screening and testing
Diagnostic Tests
Exams & Screenings
Foot and Leg Pain
Heart & Circulation
Injections
Lungs & Breathing
Minor Procedures
Occupational Health
Office procedures
Pain Management
Preventive Care
Respiratory
Senior Care
Sexual & Reproductive Health
Skin Procedures
Sleep Health
Urgent Care Procedures
Wellness & Weight
Women's Health
1,641 services · 509 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
123 | More often than most peers in Family Medicine — Sports Medicine |
| Aspiration and/or injection of fluid large joint using ultrasound guidance | Procedure | 20611 |
57 | As often as other peers in Family Medicine — Sports Medicine |
| Aspiration and/or injection of fluid from small joint using ultrasound guidance | Procedure | 20604 |
15 | |
| X-ray of knee, 4 or more views | Imaging | 73564 |
15 | |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
662 | More often than most peers in Family Medicine — Sports Medicine |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
460 | |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
146 | More often than most peers in Family Medicine — Sports Medicine |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
105 | More often than most peers in Family Medicine — Sports Medicine |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
31 | As often as other peers in Family Medicine — Sports Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
27 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Nicholas A. Greiner is a family doctor in Ballwin, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine — Sports Medicine”.
NPI registry
Nicholas A. Greiner is listed at 15945 Clayton Rd Ste 210, Ballwin, MO 63011. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (368) 931-3606. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Nicholas A. Greiner's National Provider Identifier is 1326200692. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Nicholas A. Greiner attended At Still University of Health Sciences, College of Osteo Med, Kirksville, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
Nicholas A. Greiner has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Nicholas A. Greiner performs procedures including aspiration and/or injection of fluid from large joint, aspiration and/or injection of fluid large joint using ultrasound guidance and aspiration and/or injection of fluid from small joint using ultrasound guidance; reads or performs imaging such as x-ray of knee, 4 or more views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Nicholas A. Greiner. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.